The first 3 minutes looks like it was shot on a weekend when the women were dressed up and wearing their best hats. Just look at all the hats! How stylish some of these women are for being out in the middle of nowhere . . . I mean small town America . . . in the middle of The Depression. And I can't let the fancy dinner followed immediately by the pile of dead field mice go unmentioned! Great juxaposition!
I'm not sure what the well dressed ladies were gathered for, but it was not uncommon for people to dress up when they went out back in the thirties and forties. Just going to the movies required a suit and tie for men, and a hat and dress for women.